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The pressure on a scuba diver at sea level is 14.7 pounds per sq inch (psi). The pressure increases 0.445 psi for each foot of depth. Suppose the pressure on a diver is 41.4 psi. How deep is she?

A spring is 2 in long with no weight suspended from it. For each ounce of weight. the spring stretches 0.3 in until it reaches its maximum length of 8 in. How many weight must be added for the spring to reach its maximum length?

Jennifer lit a 12 inch candle and let it burn. She found that after each hour, the candle was 3/4 in shorter. If she let the candle burn until it was only 1 in tall, how many hours did it burn?

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